/// <summary>
/// Dyes whole bitmap. Non grey pixels are first converted to grey and then dyed.
/// </summary>
/// <param name="hue">Colors spectrum that will be used.</param>
/// <param name="bitmap">Bitmap that will be edited.</param>
public static void RecolorFull(HueEntry hue, Bitmap bitmap)
{
if (hue == null)
{
throw new ArgumentNullException("hue");
}
if (bitmap == null)
{
return;
}
if (bitmap.PixelFormat != PixelFormat.Format16bppArgb1555)
{
throw new ArgumentException("Invalid bitmap pixel format.", "source");
}
BitmapData data = bitmap.LockBits(Ultima.GetBitmapBounds(bitmap), ImageLockMode.ReadWrite, PixelFormat.Format16bppArgb1555);
Debug.Assert(data.Stride % 2 == 0, "data.Stride % 2 == 0");
RecolorFullInternal(hue, data.Scan0, data.Stride * data.Height / 2);
bitmap.UnlockBits(data);
}
/// <summary>
/// Reads a TileID texture (44x44) from current position in specified file.
/// </summary>
/// <param name="stream">Stream where to read from.</param>
/// <returns>New instance of Bitmap containing read texture.</returns>
public static Bitmap ReadTile(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
Bitmap bitmap = new Bitmap(44, 44, PixelFormat.Format16bppArgb1555);
BitmapData data = bitmap.LockBits(Ultima.GetBitmapBounds(bitmap), ImageLockMode.WriteOnly, PixelFormat.Format16bppArgb1555);
byte[] buffer = new byte[44 * 2];
for (int y = 0; y < 22; y++)
{
int x = 22 - (y + 1);
int lenght = (y + 1) * 2;
stream.Read(buffer, 0, lenght * 2);
for (int i = 0; i < lenght; i++)
{
buffer[i * 2 + 1] |= 0x80;
}
Marshal.Copy(buffer, 0, (IntPtr)((int)data.Scan0 + y * data.Stride + x * 2), lenght * 2);
}
for (int y = 22; y < 44; y++)
{
int x = y - 22;
int lenght = (44 - y) * 2;
stream.Read(buffer, 0, lenght * 2);
for (int i = 0; i < lenght; i++)
{
buffer[i * 2 + 1] |= 0x80;
}
Marshal.Copy(buffer, 0, (IntPtr)((int)data.Scan0 + y * data.Stride + x * 2), lenght * 2);
}
bitmap.UnlockBits(data);
return(bitmap);
}
/// <summary>
/// Reads a run-type texture from current position in specified file.
/// </summary>
/// <param name="stream">Stream where to read from.</param>
/// <returns>New instance of Bitmap containing read texture.</returns>
public static Bitmap ReadRun(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
BinaryReader reader = new BinaryReader(stream);
int header = reader.ReadInt32();
int width = reader.ReadInt16();
int height = reader.ReadInt16();
Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format16bppArgb1555);
BitmapData data = bitmap.LockBits(Ultima.GetBitmapBounds(bitmap), ImageLockMode.WriteOnly, PixelFormat.Format16bppArgb1555);
byte[] buffer = new byte[4096];
// Read lookup table
ushort[] lookupTable = new ushort[height];
for (int i = 0; i < height; i++)
{
lookupTable[i] = reader.ReadUInt16();
}
// list begining in file
long dataPos = stream.Position;
int y = 0;
while (y < height)
{
// New line
stream.Seek(dataPos + lookupTable[y] * 2, SeekOrigin.Begin);
// ReadLine
short xOffset;
short xRun;
int x = 0;
do
{
xOffset = reader.ReadInt16();
xRun = reader.ReadInt16();
if (xOffset + xRun >= 2048)
{
throw new IOException("Corrupted list.");
}
// Read current chunk
x += xOffset;
stream.Read(buffer, 0, xRun * 2);
for (int i = 0; i < xRun; i++)
{
buffer[i * 2 + 1] |= 0x80;
}
Marshal.Copy(buffer, 0, (IntPtr)((int)data.Scan0 + y * data.Stride + x * 2), xRun * 2);
x += xRun;
} while (xRun != 0 || xOffset != 0);
y++;
}
bitmap.UnlockBits(data);
return(bitmap);
}
